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242383817 = 1319981311
BaseRepresentation
bin11100111001001…
…11101111001001
3121220002101002102
432130213233021
5444022240232
640015043145
76002141234
oct1634475711
9556071072
10242383817
11114901605
12692104b5
133b2a6ba0
142429641b
151642c662
hexe727bc9

242383817 has 8 divisors (see below), whose sum is σ = 274767360. Its totient is φ = 211962960.

The previous prime is 242383793. The next prime is 242383861. The reversal of 242383817 is 718383242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-242383817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242383117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490409 + ... + 490902.

It is an arithmetic number, because the mean of its divisors is an integer number (34345920).

Almost surely, 2242383817 is an apocalyptic number.

It is an amenable number.

242383817 is a deficient number, since it is larger than the sum of its proper divisors (32383543).

242383817 is a wasteful number, since it uses less digits than its factorization.

242383817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981343.

The product of its digits is 64512, while the sum is 38.

The square root of 242383817 is about 15568.6806441651. The cubic root of 242383817 is about 623.4972468419.

The spelling of 242383817 in words is "two hundred forty-two million, three hundred eighty-three thousand, eight hundred seventeen".

Divisors: 1 13 19 247 981311 12757043 18644909 242383817